Air Conditioning is believed to have been first applied in Ancient Rome where water was circulated through walls of certain homes to provided cooling. Similar technologies were used in Persia utilizing water stored in cisterns and wind towers to provide cooling. Modern electrically-powered air conditioning was invented and put into use by Willis Carrier in 1902. Today’s systems consume far less energy and are extremely efficient in providing tempered air to your home. Optional accessories for air purification, humidification, and variable air flow are now available to add to an overall healthy indoor environment.